Stephen pearce quick



2 SheetsSheet 2.

(No Model.) A

s. P. QUICK. MACHINE FOR SHAPING 0R PORGING AND SHAR PENING ROCK DRILLS, am.

Patented June 28, 1

NITED STATES union.

MACHINE FOR SHAPINGOR FORGINGAND SHARPENING ROCK-DRILLS, dc.

SPECIFICATION forming part of Letters Patent No. 606,390, dated June 28, 1898.

Application filed August 19, 1897. Serial No. 648,800. (No model-l Patented in South African Republic December 13, 1895,

N- 1,0Z7, and September 24, 1896,1T0. 1,217.

To all whom it may concern:

Be it known that I, STEPHEN PEARCE QUICK, a subject of the Queen of Great Britain, residing at Johannesburg, in the South African Republic, have invented certain new and useful Improvementsin Apparatus or Machines for Shaping or Forging and Sharpening Rock Drills and the Like, (for which I have obtained Letters Patent in the South African Republic, No. 1,027, dated December 13, 1895, and No. 1,217, dated September24, 1896,) of which the following is a specification. I

This invention relates to an apparatus or machine primarily designed for shaping or forging and sharpening that class of rock or like drills commonly termed jumpers or chisel-bits, which are employed for the formation of holes in rock, stone, &c., for

V blasting operations in gold or other mines.

Although primarily and more particularly designed for this special purpose, it will be evident that the machine may be employed for the forging, sliapin g, and sharpening of other similarly-shaped edged tools, such as chisels and the like.

It is designed with the object of producing an eflicient machine for performing the several operations requisite to produce a satisfactorily sharpened drill capable of being driven at ahigh speed, and at the same time one of comparatively simple and consequently cheap construction, and one which if, desired, will be within the capacity or complete control of one man.

It consists essentially, of a machine c011- structcd with upper and lower die-blocks, to the upper one, preferably, of which a reciprocating motion is imparted through the me dium of a crank or eccentric connecting-rod and cross-head or slide workingin slide-bars or guides formed 011 or attached to the framing of the machine or operated in any other suitable and convenient manner, in or to which die-blocks any desired and convenient number of dies for efieoting the sharpening of Varying sizes of drills are sunk or fitted, arranged, preferably, in two sets, one set for forging or forming the tapering, flat, or angular faces of the drill and the other set for forging or forming the drill on its slightlyspreading sides or edges, the halves of the dies for forming the tapering. or flat faces of the drill sunk in each die-block being fitted with adjustable cutters so disposed or arranged within the die-blocks as to impart the desired bevel to the extremity of the drill and to form the sharp chisel-shape cutting edge thereon when the halves of the dies are brought to coincide and to shear off any superfluous metal, and also, in combination with the periphery of the fly-wheel of the machine, of an adjustable cutter working in conjunction with an adjustable normally-stationary cutter supported in an extension or projection of the framing directed toward the periphery of the fly-wheel, or in a bracket affixed thereto, for removing the bur or fine edge or strip of metal usually left on the cutting edge of the drill after it has been passed through the dies, and thereby to complete the sharpening or formation of the cutting edge on the drill.

The'invention will be further and fully described by aid of the sheet of drawings hereunto annexed.

In the drawings, Figure 1 is a front elevation of the machine; Fig. 2, an end elevation of same, partly in section,.and showing one of the dies for forming the tapering or angular faces of the drill, the means for adjusting the cutters constituting that part of each half of the die which imparts the required bevel to the drill and forms the eX- treme cutting edge thereon and also them;

means for adjusting the lower die-block Fig. 3, a transverse sectional elevation of a portion of the upper and lower die-blocks, showing one of the dies sunk therein for forming the tapering or flatfaces of the drill drawn to an enlarged scale; Fig. 4, plan of one-half,

of the die and die-block shown in Fig. 3. Fig. 4 is a plan of the lower die-block J, drawn to a still larger scale to show the slightly-rounded and beveled cutting edge of the cutters m or m. Fig. 4: shows several detail views of one of cutters m; Fig. 5, a transverse sectional elevation of a portion of the die-blocks,showing one of the dies sunk therein for forming the slightly-spreading sides or edges of the drill; Fig'. 6, a plan of one-half of the die and die-block shown in Fig. 5. Fig. 6 is a similar View to Fig. 5, but drawn to an enlarged scale to show the slightly-rounded inner end n of dies M, M, or M. Fig. 7 is an end elevation of the machine, showing a drill V in po sition for the removal of the bur .1; by the cutters Q and B. Fig. 7 shows several detail views of cutter Q. Fig. 7 shows several detail views of cutter R.

A is the preferably cast-irpn frame of the machine,of any suitable construction and design, comprising a base a and two standards or pedestals a m in which is journaled the eccentric-shaft B, to one extremity of which is keyed or otherwise attached the drivingpulley C, speed-cone, or fast and loose pulleys, and to the other the fly-wheel D.

On the eccentric-shaft B and between its bearings the connecting rod or link E is mounted, which is connected by means of a pin F, bolt, or the like with the cross-head G, working in guides or recesses formed on the inside of the standards a a 9 are studs, pins,or the like screwed through the crosshead into the pin F to secure same thereto and to prevent its rotation therein. To the front of the standards a a are fixed, by means of setscrews h h or the like, the retaining-plates H Hiforming the front portion of the guides or recesses in which the cross-head G works.

The under side of the cross-head G is formed with a preferably dovetail recess 9, in which fits a correspondingly-shaped projection or piece g, formed on the top of the upper dieblock H. A wedge-shaped key h2 is preferably inserted and tightly driven in at one side between the recess g and the projection g to firmly secure same therein and to prevent the possibility of its working loose while the machine is running. The upper die-block H is by this means firmly connected with the cross-head G, and the requisite reciprocating motion is thereby imparted to it on the rotation of the shaft B.

Within the center of the base a of the machine-frame, which is hollowed out to receive it, is fitted a wedge or block K, formed with an inclined upper surface and provided with adjusting screws, studs, or bolts 76 70 foreffecting any desired vertical adjustment of the lower die-block through the medium of the wedge K. The screws, studs, or bolts 70 70 pass in from the exterior of the frame, which is tapped to receive them, and are provided with lock-nuts or other suitable devices for locking same in position after any required adjustment has been effected.

I dies.

dieblock J and through preferably openended slots formed in the adjusting-wedge K and screwing into the base a of the frame on the inside, are provided for securely bolting the lower die-block in position vertically when adjusted.

The upper and lower die-blocks H J, respectively, are shown in the drawings sunk with three dies L L L for forming the taper ing or angular faces of the drill and with three corresponding dies M M M for forming the slightly-spreading sides or edges thereof.

The machine as thus constructed is capable of accommodating or forging and sharpening three different sizes of drills.

It will be perfectly evident that the capacity of the machine or the number of dies may be increased or decreased, as may be desired.

The form and construction of the dies L L L is more clearly shown in Figs. 2, 3, 4, and 4; of the drawings. In the upper and lower die-blocks H J are sunk or fitted half of the complete die, having the form of the drill or tool at its cutting extremity or so formed that when brought together they form a cavity or recess in the blocks exactly corresponding with the external shape of the tool at this part. The dies L L L have the surfaces corresponding to the tapering or angular faces of the drill sunk approximately horizontal or so that the drill when placed between them to be sharpened receives the full force or blow on its tapering or angular faces. The upper and lower die-blocks are constructed with inclined slots Z Z, projecting into or terminating at the inner ends of the dies, in which are fitted preferably hardened-steel cutters m m, slightly rounded and beveled, as seen more particularly in Figs. 4: and 4 to form the slightly rounded and beveled cutting edges on the drill and to shear off any superfluous metal that may be fed or placed between the The cutters m and m, as seen in Figs. 4: and 4:", are slightly dished out or hollowed on their face or surface m which projects into and forms the inner end of the die, the inner end of the die being rounded or curved correspondingly, as shown in Fig. 4, and they are beveled and slightly rounded on their cutting edge from end to end, as seen at m Fig. 4 These cutters, it will be perceived, when in position complete the form of or constitute the innermost portion of the die. The slots vZ Z are cut or formed at any desired angle or inclination, according to the bevel required on the edge of the drill or tool. For the particular purpose for which the machine is designed it is found that the cutting of the slots at anangle of about forty-five degrees is productive of satisfactory results. It will be evident that the inclination may be varied as may be desired.

For the purpose of setting or effecting any required adjustment of the cutters m m wedges or tapered bolts n n are provided, passing through slots 0 0, formed in the diebloeks and intersecting the slots l l and bear- IIO ing upon the inner extremities of the cutters mm. The wedges n n are screwed and fitted with nuts by which they may be drawn forward to adjust the cutters. Stops or rests O are fitted by set-screws or otherwise to the upper die-block opposite each of the dies L L L or carried the full length of these dies.

The form of the dies M M M is clearly shown in Figs. 5, 6, and 6 of the drawings. These dies are similar to those shownin Figs. 2, 3,4,and 4,except that they are sunk or fitted in the die-blocks at right angles thereto or so that the pressure of the upper block is received upon the slightly-spreading sides or edges of the drill to complete the formation of the drill to the required size or gage.

Fig. 6 shows the slightly-rounded inner end 01. of the die for forming the slightlyrounded extremity of the drill.

On the fly-wheel side of the frame of the machine an extension or bracket P is preferably cast or formed separate and bolted or otherwise affixed thereto. This projection or bracket P is formed with a vertical slot 19, in which is fitted a preferably-hardened-steel cutter Q, held in position therein by means of straps or bars qq, secured in position by means of set-screws or the like (1 1 A screw bolt or stud o", passing in through the under side of the bracket P and provided with a locknut r, is employed for effecting the vertical adjustment of the cutter Q. In the periphery of the fly-wheel Da slot-cl is formed, in which is fitted a corresponding cutter R, provided with holding and adjusting screw bolts or studs r W. The cutters Q R are so arranged and set that as the fly-wheel revolves the cutter R just passes over the cutter Q. The cutters Q and R are preferably slightly rounded and beveled off to correspond with the curvature of the cutting edge of the drill or tool. The cutter Q (see Fig. 7) is precisely similar in construction to the cutters m and m-thatis to say, it is slightly dished out on its front face at s and beveled and slightly rounded from end to end, forming a wardly or in the opposite direction and a concave beveled cutting end 15 therebyformed. The cutter R is rounded on the front or forward face, as shown at i, instead of being dished out, as is the case with its corresponding cutter Q.

A rest or support T, as shown in dotted lines, Fig. 1, formed with notches or recesses '6 in line with the several dies, will preferably be bolted or otherwise affixed to theframe of the machine, and a similar rest U will also be provided for supporting the stock or shank of the drill V while the bur or fine strip of metal o is being removed by the cutters Q and R.

In the working of the machine after the requisite adjustment of the several parts has been effected the drill to be sharpened or the metal from which the drill is to be formed having beenraised to the requisite tempera ture is placedbetween one or other'of the dies L, L, or L corresponding to its size, and thereby has the tapering or angular faces of the die imparted to it, the cutting edge being at the same time formed by the cutters. It is now placed in the corresponding die M, M, or M as the case may be, and is finished on its spreading edges and corners. The drill is now finally placed in the rest U in such a positionas to bring the fine strip of metal or bur 1; left by the dies on the edge of the drill in line'with or resting on or projecting over the cutting edge of the lower cutter Q, and the cutter R, fixed to the periphery of the flywheel D, as it revolves shears off the bur 12, leaving the drill V with a clean sharp cutting edge. The drill is now'tempered and is then ready for use.

Having fully described my invention, what I I claim, and desire to secure by Letters Patent, is

1. A die for shaping or forging and sharpening rock-drills and similarly-shaped edged tools fitted with an inclined cutter so disposed or arranged as to constitute that portion of the die which effects the formation of the extreme cutting edge on the drillsim ultaneously with the formation of the tapering or angular faces, said cutter being set at such an inclination as to form the desired bevel at the out ting-point of the drill in addition to the cutting'edge substantially as described.

2. A die for shaping or forging and sharpening rock-drills and the like in which is arranged an adjustable inclined cutter for imparting the desired bevel to the drill at the cutting-point and also to form the extreme cutting edge thereon simultaneously with the formation of the tapering or angular faces substantially as described. I

3. In combination, the die for forging or shaping and sharpening rock-drills and like tools, the adjustable inclined cutter, constituting a portion of the die, slightly rounded and beveled to form the slightly rounded and beveled cutting edge on the drill simultaneously with the formation of the tapering or 5. In combination, a die-block, a die sunk or fitted therein for shaping or forging the tapering or angular faces on rock-drills and like tools, an inclined slot formed in the dieblock projecting into said die, a cutter arranged therein and forming that portion of the die which effects the sharpening or formation of the extreme cutting edge on the drill, a further slot formed in the die-block, intersecting the inclined slot in which the cutter is arranged and an adj usting-wedge or tapered bolt fitted Within this further slot and bearing against the end of the cutter for effectin g any required adjustment thereof substantially as described and shown.

6. In machines or apparatus for shaping or forging and sharpening rock-drills and the like the combination of upper and lower dieblocks to the upper one of which a Vertical reciprocating or up-and-down motion is imparted in any suitable manner, the die-blocks being sunk or fitted with one or more dies for effectin g the shaping and sharpening of drills or tools on their tapering or angular faces, said die or dies being fitted or provided with an adjustable cutter or cutters for forming the-extreme cutting edge on the drill simultaneously with the formation of the angular faces and with one or more dies for forming the drill on its slightly-spreading sides or edges and finishing same to gage substantially as described and shown.

7. In machines or apparatus for shaping or forging and sharpening rock-drills and the like the combination of upper and lower dieblocks to the upper one of which a vertical reciprocating or up-and-down motion is imparted in any suitable manner, the die-blocks being sunk or fitted with one or more dies having tapering and angular faces for effecting the shaping and sharpening of drills or tools on their tapering or angular faces, said die or dies being fitted or provided with an adjustable cutter or cutters slightly rounded and beveled and set at such an inclination in the blocks as to form the desired bevel at the cutting-point and the slightly rounded and beveled cutting edge of the drill simultaneously With the formation of the tapering and angular faces thereof substantially as described.

8. In machines or apparatus for shaping or forging and sharpening rock-drills and like tools, the combination of the upper and lower die-blocks H J, in which are sunk or fitted the set or series of dies L L L" for forming the taperingor angular faces of the drill, the inclined slots or holes Z Z formed in the dieblocks and terminating at the inner ends of the dies, the cutters 'm m fitted within the slots 1 Z and constituting the innermost portion of the dies, the slots or holes 0 0 formed in the die-blocks and intersecting the slots Z l, the wedges or tapered bolts n n fitted in slots 0 0 and bearing upon the extremities of the cutters m m for adjusting same as may be desired and a rest-0r stop .0 substantially as described and shown.

9. In machines or apparatus for shaping or forging and sharpening rock-drills and the like the combination of the bracket or extension P of the frame, the slot 19 formed there in, the slightly rounded and beveled cutter Q fitted within slot 1), the straps or bars q q affixed to the bracket P and securing cutter Q in position in the slot 19, the adj usting-screw r for the cutter Q, the fiy-wheel D, the slot (1 formed in the rim or periphery thereof, the slightly rounded and beveled cutter R fitted within the slot 61, the retainingstud r and adjusting-screw r for the cutter R for shearing off the bur or fine edge or strip of metal left on the cutting edge of the drill or tool after it has been passed through the dies substantially as described and shown.

10. In machines or apparatus for shaping or forging and sharpening rock-drills and the like the combination of the frame A of the machine, comprising the base a and the standards or pedestals (1 (t the shaft B journaled therein, the driving-pulley C, the fiy-Wheel D,

the cross-head G working in guides or recesses formed on the inside of the pedestals a C62 and coupled up with the driving-shaft B by means of an eccentric, crank or other suitable device to impart avertical reciprocating or upand-down motion thereto on the rotation of the shaft, the recess g formed in the crosshead G on the under side, the upper die block H, the projection g fitting and secured within-the recess g, the dies L L L sunk or fitted within the die-block H, the inclined cutters m m the adjusting-wedges or tapered bolts 0?, n, the stops or rests O, the dies M M M sunk or fitted within die-block H, the lower die-block J, the dies L L L sunk orfitted therein, the inclined cutters m m, the adj listing-wedges or tapered bolts '21 a, the dies M M M sunk or fitted within die-block J, the tapered or inclined under surfacej of the dieblock J the adj Listing-wedge K fitted within the base a upon which block J rests, the holding and adjusting screws or studs 7' 3' 7' k for the wedge K and the holding-down bolts j forthe lower die-block J substantially as described and shown.

11. In machines or apparatus for shaping or forging and sharpening rock-drills and the like, the combination of the frame A, comprising the base a and the standards or pedestals a a the eccentric-shaft B journaled therein, the driving-pulley O, the connectingrod E, the cross-head G, the pin F, the screws or studs 9 the retaining-plates H H affixed to the pedestals a a the recess g formed in the cross-head G on the under side, the upper die-block H, the corresponding projection g formed thereon and fitting within the recess g, the wedge or tapered key 71 the dies L L L sunk or fitted Within the die-block H, the inclined cutters m m the adjusting-wedges or tapered bolts 71 n, the stops or rests O, the dies M M M sunk or fitted within die-block H, the lower die-block J, the dies L L L sunk or fitted therein, the inclined cutters m m, the adjusting-wedges or tapered bolts n n, the dies M M M sunk or fitted within dieblock J, the tapered or inclined under surface j of the die-block J the adjusting-wedge K fitted within the base a upon" which block J rests, the holding and adjusting screws or studs j j j 7t 70 for the wedge K and the holding-down bolts j for the lower die-block J, and ad j usting-screw r for the cutter R sub- 10 the bracket or extension P of the frame A, stantiaily as described and shown,

the slot 19 formed therein, the cutter Q fitted In witness whereof I have hereunto set my within slot 10, the straps or bars qq'affixed to hand in presence of two witnesses.

5 the bracket P and securin cutter Q in position in the slot p, the adjilsting-screw 'r for STEPHEN PEARCE QUICK the cutter Q, the fly-wheel D, the slot dformed WVitnesses: in the rim or periphery thereof, the cutter R G. I. FISCHER, fitted within the slot 61, the retaining-stud r? CHAS. OVENDALE. 

